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(DL) Delta Air Lines 4959 On-Time Performance Rating

Date Range:

15-Jun-2026 to 15-Aug-2026

(JAX) Jacksonville International Airport

Jacksonville, FL, US

(JFK) New York John F. Kennedy International Airport

New York, NY, US

On-Time Performance Chart

(using rounded numbers)
On-Time
51
84%
Late
1
2%
Very Late
1
2%
Excessive
4
7%
Cancelled
4
7%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
13
Codeshares
61
Average Delay (min.)
40.23076923076923
Standard Deviation
53.1
Min
0
Max
154

DL 4959 On-Time Performance Details

Overall Rating
3.5 of 5
Average
Percentage On-Time 84%
Average Delay Time 40.23076923076923 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.5 shows that this flight has on-time performance characteristics better than 69% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 of 5
Very Good
Percentage On-Time 84%
This flight has an on-time performance of 84%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 98% of other flights.
Delay Performance
2.1 of 5
Average
Average Delay Time 40.23076923076923 min
This flight has an average delay of 40.23076923076923 minutes with a standard deviation of 53.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 42% of other flights.